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hb.c revision 1.19.100.5 
      1 /*	$NetBSD: hb.c,v 1.19.100.5 2021/04/05 00:48:51 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999 Izumi Tsutsui.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 #include <sys/cdefs.h>
     28 __KERNEL_RCSID(0, "$NetBSD: hb.c,v 1.19.100.5 2021/04/05 00:48:51 thorpej Exp $");
     29 
     30 #include <sys/param.h>
     31 #include <sys/systm.h>
     32 #include <sys/device.h>
     33 
     34 #include <machine/autoconf.h>
     35 #include <machine/bus.h>
     36 #include <machine/cpu.h>
     37 
     38 #include <news68k/news68k/isr.h>
     39 #include <news68k/dev/hbvar.h>
     40 
     41 #include "ioconf.h"
     42 
     43 static int  hb_match(device_t, cfdata_t, void *);
     44 static void hb_attach(device_t, device_t, void *);
     45 static int  hb_search(device_t, cfdata_t, const int *, void *);
     46 static int  hb_print(void *, const char *);
     47 
     48 CFATTACH_DECL_NEW(hb, 0,
     49     hb_match, hb_attach, NULL, NULL);
     50 
     51 static int
     52 hb_match(device_t parent, cfdata_t cf, void *aux)
     53 {
     54 	struct mainbus_attach_args *ma = aux;
     55 
     56 	if (strcmp(ma->ma_name, hb_cd.cd_name) != 0)
     57 		return 0;
     58 
     59 	if (ma->ma_systype != -1 && ma->ma_systype != systype)
     60 		return 0;
     61 
     62 	return 1;
     63 }
     64 
     65 static void
     66 hb_attach(device_t parent, device_t self, void *aux)
     67 {
     68 	struct hb_attach_args ha;
     69 
     70 	aprint_normal("\n");
     71 	memset(&ha, 0, sizeof(ha));
     72 
     73 	config_search(self, &ha,
     74 	    CFARG_SEARCH, hb_search,
     75 	    CFARG_EOL);
     76 }
     77 
     78 static int
     79 hb_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
     80 {
     81 	struct hb_attach_args *ha = aux;
     82 
     83 	ha->ha_name = cf->cf_name;
     84 	ha->ha_address = cf->cf_addr;
     85 	ha->ha_ipl = cf->cf_ipl;
     86 	ha->ha_vect = cf->cf_vect;
     87 
     88 	/* XXX news68k Hyper-bus is not a real bus... */
     89 	ha->ha_bust = ISIIOPA(ha->ha_address) ?
     90 	    NEWS68K_BUS_SPACE_INTIO : NEWS68K_BUS_SPACE_EIO;
     91 
     92 	if (config_probe(parent, cf, ha) > 0)
     93 		config_attach(parent, cf, ha, hb_print, CFARG_EOL);
     94 
     95 	return 0;
     96 }
     97 
     98 /*
     99  * Print out the confargs.  The (parent) name is non-NULL
    100  * when there was no match found by config_found().
    101  */
    102 static int
    103 hb_print(void *args, const char *name)
    104 {
    105 	struct hb_attach_args *ha = args;
    106 
    107 #if 0
    108 	if (ha->ha_addr > 0)
    109 #endif
    110 		aprint_normal(" addr 0x%08lx", ha->ha_address);
    111 	if (ha->ha_ipl > 0)
    112 		aprint_normal(" ipl %d", ha->ha_ipl);
    113 	if (ha->ha_vect > 0) {
    114 		aprint_normal(" vect %d", ha->ha_vect);
    115 	}
    116 
    117 	return QUIET;
    118 }
    119 
    120 /*
    121  * hb_intr_establish: establish hb interrupt
    122  */
    123 void
    124 hb_intr_establish(int hbvect, int (*hand)(void *), int ipl, void *arg)
    125 {
    126 
    127 	if ((ipl < 1) || (ipl > 7)) {
    128 		printf("hb: illegal interrupt level: %d\n", ipl);
    129 		panic("hb_intr_establish");
    130 	}
    131 
    132 	if ((hbvect < 0) || (hbvect > 255)) {
    133 		printf("hb: illegal vector offset: 0x%x\n", hbvect);
    134 		panic("hb_intr_establish");
    135 	}
    136 
    137 	isrlink_vectored(hand, arg, ipl, hbvect);
    138 }
    139 
    140 void
    141 hb_intr_disestablish(int hbvect)
    142 {
    143 
    144 	if ((hbvect < 0) || (hbvect > 255)) {
    145 		printf("hb: illegal vector offset: 0x%x\n", hbvect);
    146 		panic("hb_intr_disestablish");
    147 	}
    148 
    149 	isrunlink_vectored(hbvect);
    150 }
    151